package com.littleken.core.validate;

import com.littleken.core.config.SecurityProperties;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.social.connect.web.HttpSessionSessionStrategy;
import org.springframework.social.connect.web.SessionStrategy;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.ServletWebRequest;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;

/**
 * 图片验证码controll
 */
@RestController
@Slf4j
public class ValidateCodeController {

    public static final String SESSION_KEY = "SESSIONKEY_IMAGE_CODE";//session key

    private SessionStrategy sessionStrategy = new HttpSessionSessionStrategy();//操作session

 /*   @Autowired
    private SecurityProperties securityProperties; //配置类*/
    @Autowired
    private ValidateCodeGenerator ImageCodeGenerator;

    /**
     * 图片验证码接口,向前端展示图片
     * @param request
     * @param response
     * @throws IOException
     */
    @GetMapping("/code/image")
    public void createCode(HttpServletRequest request, HttpServletResponse response) throws IOException {
        ImageCode imagecode = ImageCodeGenerator.generate(new ServletWebRequest(request));//根据请求生成code
        sessionStrategy.setAttribute(new ServletWebRequest(request),SESSION_KEY,imagecode);//将code值存到用户的session中
        ImageIO.write(imagecode.getImage(),"JPEG",response.getOutputStream());//向用户展示验证码图片
    }

/*    *//**
     * 生成验证码图片
     * @param request
     * @return
     *//*
    private ImageCode generate(ServletWebRequest request) {
       *//* int width = 67;
        int height = 23*//*;
        int width = ServletRequestUtils.getIntParameter(request.getRequest(),"width",securityProperties.getCode().getImage().getWidth());
        int height =ServletRequestUtils.getIntParameter(request.getRequest(),"hight",securityProperties.getCode().getImage().getHight());
        BufferedImage image = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);

        Graphics g = image.getGraphics();
        Random random = new Random();

        g.setColor(getRandColeor(200,250));
        g.fillRect(0,0,width,height);
        g.setFont(new Font("Time New Roman",Font.ITALIC,20));
        g.setColor(getRandColeor(160,200));
        for (int i = 0; i < 155; i++) {
            int x = random.nextInt(width);
            int y = random.nextInt(height);
            int xl = random.nextInt(12);
            int yl = random.nextInt(12);
            g.drawLine(x,y,x + xl,y + yl);
        }

        String sRand = "";
        Integer num = securityProperties.getCode().getImage().getLength();
        Integer time = securityProperties.getCode().getImage().getExirtInt();
        if (num == null){
            num = 4;
        }
        if(time == null){
            time = 60;
        }
        for (int i = 0; i < num; i++) {
            String rand = String.valueOf(random.nextInt(10));
            sRand +=rand;
            g.setColor(new Color(20 + random.nextInt(110),20 + random.nextInt(100),20 + random.nextInt(110)));
            g.drawString(rand,13 * i + 6,16);
        }
        g.dispose();
        return new ImageCode(image,sRand,time);
    }

    *//**
     * 随机生成干扰条纹
     * @param fc
     * @param bc
     * @return
     *//*
    private Color getRandColeor(int fc,int bc){
        Random random = new Random();
        if(fc > 255){
            fc = 255;
        }
        if (bc > 255){
            bc = 255;
        }
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);

        return new Color(r,g,b);

    }*/
}
